Unfinished Stubbing Detected in Mockito

Unfinished Stubbing Detected in Mockito

In Mockito, the "Unfinished Stubbing Detected" error typically occurs when you are stubbing a method on a mock object, but you haven't specified what the method should return using the thenReturn() method. This error helps you catch situations where you've partially stubbed a method but haven't provided the necessary return value.

To resolve the "Unfinished Stubbing Detected" error in Mockito, follow these steps:

  • Ensure that you have a valid mock object:

    • Make sure you are working with a valid mock object created using Mockito.mock() or a similar method. The object you are stubbing methods on should be a Mockito mock.

  • Stub the method correctly:

    • If you intend to stub a method call, use the when() method from Mockito's API to specify what the method should return. Make sure to provide a return value using thenReturn() or other similar methods.

Here's an example of correct stubbing:

import org.mockito.Mockito; import static org.mockito.Mockito.*; public class MockitoExample { public static void main(String[] args) { // Create a mock object MyClass myClassMock = Mockito.mock(MyClass.class); // Correct stubbing with return value when(myClassMock.someMethod()).thenReturn("Mocked Value"); // Perform actions that trigger the stubbed method String result = myClassMock.someMethod(); // Verify the result System.out.println(result); // Output: Mocked Value } }

In this example, someMethod() of the MyClass mock is stubbed correctly using when().thenReturn(). Make sure your code follows a similar pattern for stubbing methods on mock objects.

  • Check for potential issues:
    • Ensure that you haven't accidentally mixed static imports from different mocking frameworks, as this can lead to unexpected behavior and errors.

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